Mercurial > sdl-ios-xcode
view src/joystick/dc/SDL_sysjoystick.c @ 855:aa4ac9e65d92
I noticed MacOSX SDL sets up working directory to parent of executable.
On BeOS is should setup it the same way, but it only does when Tracker
wasn't restarted.
I checked code and it looks like a hack to me :(
It looks for env variable and than comapres it to default when OpenTracker
was started after boot, and wasn't restarted. That's probably ok, for that
exact case. Unfortunetly that variable isn't always like that. For
example, after Tracker crashes and is restarted, env variable most
probably is different (depends on how Tracker was restarted, by what
application, etc... for example: i have launcher application from which i
can restart Tracker, and after that nev variable points to that
application's directory, not Tracker's).
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Tue, 24 Feb 2004 18:58:40 +0000 |
parents | b8d311d90021 |
children | c9b51268668f |
line wrap: on
line source
/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2004 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA BERO bero@geocities.co.jp based on win32/SDL_mmjoystick.c Sam Lantinga slouken@libsdl.org */ #ifdef SAVE_RCSID static char rcsid = "@(#) $Id$"; #endif /* Win32 MultiMedia Joystick driver, contributed by Andrei de A. Formiga */ #include <stdlib.h> #include <stdio.h> /* For the definition of NULL */ #include "SDL_error.h" #include "SDL_joystick.h" #include "SDL_sysjoystick.h" #include "SDL_joystick_c.h" #include <dc/maple.h> #include <dc/maple/controller.h> #define MAX_JOYSTICKS 8 /* only 2 are supported in the multimedia API */ #define MAX_AXES 6 /* each joystick can have up to 6 axes */ #define MAX_BUTTONS 8 /* and 8 buttons */ #define MAX_HATS 2 #define JOYNAMELEN 8 /* array to hold joystick ID values */ static uint8 SYS_Joystick_addr[MAX_JOYSTICKS]; /* The private structure used to keep track of a joystick */ struct joystick_hwdata { cont_cond_t prev_cond; int prev_buttons; }; /* Function to scan the system for joysticks. * This function should set SDL_numjoysticks to the number of available * joysticks. Joystick 0 should be the system default joystick. * It should return 0, or -1 on an unrecoverable fatal error. */ int SDL_SYS_JoystickInit(void) { int numdevs; int p,u; numdevs = 0; for(p=0;p<MAPLE_PORT_COUNT;p++) { for(u=0;u<MAPLE_UNIT_COUNT;u++) { if (maple_device_func(p,u)&MAPLE_FUNC_CONTROLLER) { SYS_Joystick_addr[numdevs] = maple_addr(p,u); numdevs++; } } } return(numdevs); } /* Function to get the device-dependent name of a joystick */ const char *SDL_SYS_JoystickName(int index) { maple_device_t *dev; if (maple_compat_resolve(SYS_Joystick_addr[index],&dev,MAPLE_FUNC_CONTROLLER)!=0) return NULL; return dev->info.product_name; } /* Function to open a joystick for use. The joystick to open is specified by the index field of the joystick. This should fill the nbuttons and naxes fields of the joystick structure. It returns 0, or -1 if there is an error. */ int SDL_SYS_JoystickOpen(SDL_Joystick *joystick) { /* allocate memory for system specific hardware data */ joystick->hwdata = (struct joystick_hwdata *) malloc(sizeof(*joystick->hwdata)); if (joystick->hwdata == NULL) { SDL_OutOfMemory(); return(-1); } memset(joystick->hwdata, 0, sizeof(*joystick->hwdata)); /* fill nbuttons, naxes, and nhats fields */ joystick->nbuttons = MAX_BUTTONS; joystick->naxes = MAX_AXES; joystick->nhats = MAX_HATS; return(0); } /* Function to update the state of a joystick - called as a device poll. * This function shouldn't update the joystick structure directly, * but instead should call SDL_PrivateJoystick*() to deliver events * and update joystick device state. */ void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick) { const int sdl_buttons[] = { CONT_C, CONT_B, CONT_A, CONT_START, CONT_Z, CONT_Y, CONT_X, CONT_D }; uint8 addr; cont_cond_t cond,*prev_cond; int buttons,prev_buttons,i,changed; addr = SYS_Joystick_addr[joystick->index]; if (cont_get_cond(addr,&cond)<0) return; buttons = cond.buttons; prev_buttons = joystick->hwdata->prev_buttons; changed = buttons^prev_buttons; if ((changed)&(CONT_DPAD_UP|CONT_DPAD_DOWN|CONT_DPAD_LEFT|CONT_DPAD_RIGHT)) { int hat = SDL_HAT_CENTERED; if (buttons&CONT_DPAD_UP) hat|=SDL_HAT_UP; if (buttons&CONT_DPAD_DOWN) hat|=SDL_HAT_DOWN; if (buttons&CONT_DPAD_LEFT) hat|=SDL_HAT_LEFT; if (buttons&CONT_DPAD_RIGHT) hat|=SDL_HAT_RIGHT; SDL_PrivateJoystickHat(joystick, 0, hat); } if ((changed)&(CONT_DPAD2_UP|CONT_DPAD2_DOWN|CONT_DPAD2_LEFT|CONT_DPAD2_RIGHT)) { int hat = SDL_HAT_CENTERED; if (buttons&CONT_DPAD2_UP) hat|=SDL_HAT_UP; if (buttons&CONT_DPAD2_DOWN) hat|=SDL_HAT_DOWN; if (buttons&CONT_DPAD2_LEFT) hat|=SDL_HAT_LEFT; if (buttons&CONT_DPAD2_RIGHT) hat|=SDL_HAT_RIGHT; SDL_PrivateJoystickHat(joystick, 1, hat); } for(i=0;i<sizeof(sdl_buttons)/sizeof(sdl_buttons[0]);i++) { if (changed & sdl_buttons[i]) { SDL_PrivateJoystickButton(joystick, i, (buttons & sdl_buttons[i])?SDL_PRESSED:SDL_RELEASED); } } prev_cond = &joystick->hwdata->prev_cond; if (cond.joyx!=prev_cond->joyx) SDL_PrivateJoystickAxis(joystick, 0, cond.joyx-128); if (cond.joyy!=prev_cond->joyy) SDL_PrivateJoystickAxis(joystick, 1, cond.joyy-128); if (cond.rtrig!=prev_cond->rtrig) SDL_PrivateJoystickAxis(joystick, 2, cond.rtrig); if (cond.ltrig!=prev_cond->ltrig) SDL_PrivateJoystickAxis(joystick, 3, cond.ltrig); if (cond.joy2x!=prev_cond->joy2x) SDL_PrivateJoystickAxis(joystick, 4, cond.joy2x-128); if (cond.joy2y!=prev_cond->joy2y) SDL_PrivateJoystickAxis(joystick, 5, cond.joy2y-128); joystick->hwdata->prev_buttons = buttons; joystick->hwdata->prev_cond = cond; } /* Function to close a joystick after use */ void SDL_SYS_JoystickClose(SDL_Joystick *joystick) { if (joystick->hwdata != NULL) { /* free system specific hardware data */ free(joystick->hwdata); } } /* Function to perform any system-specific joystick related cleanup */ void SDL_SYS_JoystickQuit(void) { return; }